Improvement in flouring and grist mills



E. CLARK.

Feed Regulator for Mills.

Patented Jan. 14,1862.

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N22,?" amid T UNITED STATES PATENT OFFICE.

EDWIN CLARK, OF LANCASTER, PENNSYLVANIA.

IMPROVEMENT IN FLOURING AND GRIST MILLS.

Specification forming part of Letters Patent No. 34,129, dated January 14, 1862.

To aZZ whom it may concern:

Be it known that I, EDWIN CLARK, of the city of Lancaster, in the county of Lancaster and State of Pennsylvania, have invented new and useful devices in the construction of an Improved Silent Feed for Flouring and Grist Mills; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings and the letters of reference marked thereon, in which Figure 1 is a perspective View of the ordinary millstone, hoop c, bench B, and hopper A, supported on the husk-frame H, with the several improvements in place. Fig. 2 is a vertical section of the same, exhibiting the parts more fully within the burr U U and hoop or casing G. Fig. 8 shows the central plate or distributer Y, with its'lugs R R and set-screw W detached. Fig. 4: shows the same within a conic open ring J, having a beveled rim above, either attached or set into slots by the arms Z of the disk or distributing-plate Y. Its application in the chamber of the burr U is shown in Fig. 2. Fig. 5 is a vertical section of the same. Fig. 6 illustrates the double feeding-tube. The outer tube 0 has a projecting pivot X on two opposite sides and a set-screw P. The inner tube Q is held in place or adjusted by means of said set-screw P.

The nature of my invention consists, mainly, in the following particulars, which I will now more fully explain.

On the top F, Fig. 2, of the hoop or case G I affix a block E. To this block I attach the lever cross-piece O by a hinge or otherwise that may admit the other end of the lever or cross-piece to be raised and lowered at pleasure. This lever-arm projects beyond the top F, where it may be held'and regulated in its vertical motions by a strap, or, as shown, by a headed rod K, having a screw-thread on its lower end, which passes through a burr min the bed II of the husk-frame or at any convenient point. In an opening for its reception this lever C supports the adjustable feeding-tube shown by Fig. 6, being held by the pivot-ears X, which admit of avibratory motion, so that the tube always hangs plumb, and is not alfected by the rising or lowering of the lever otherwise than to allow more or less feed upon the distributing-disk Y, with which it is brought in close or remote contact by its discharging-mouth as the lever C is raised or depressed. By means of the setscrew]? the discharging-tube Q can also be readily adjusted to the wear of the burr or to the top of the balance-rynd s, differing in their position in different burrs. The tube N in the hopper may be of glass or metal. The conic cylinder J, Fig. 4, with its distributing plate or disk Y, is aflixed by its arms Z'so as to allow the grain to pass freely between said central disk and the inner side of the cylinder. This disk is provided with two lugs R R, (beneath, as shown by Fig. 3,) forming a stirrup, which is set over and straddles the balance-rynd s of the burr, towhich rynd it is attached or held by means of keys or by ascrew or screws W, as shown.

The central or distributing disk Y may be either concave, convex, plain, or with a central conic point, as the occasion may demand. This disk with its lugs may be employed independently, and is preferable to a disk fastened by a screw into the top of the rynd, tend ing to injure the rynd by boring and tapping, and besides its inconvenience of application is obviated by means of said lugs R; but it is highly important to surround the disk with the conic cylinder J, constituting one piece, which is portable and readily applied to any of the ordinary burrs in use by simply affixing it, as before said, to the balance-rynd .9 within the burrs, so that the ready-made article is always applicable at a short notice, giving it a great advantage.

The utility arising by the use of the conic cylinder is to arrest the grain without giving it a chance to lodge or be held when thrown against its inner surface by the centrifugal force of the distributing-disk, as is the case when thrown directly against the perpendicular sides of the eye of the stone, frequently adhering and accumulating until it falls down in a mass by its own weight, thereby checking the mill and causing loss and annoyance to the miller. This evil is effectually obviated by this simple device, making it altogether a highly valuable and desirable improvement, readily appreciated by all acquainted with the business.

I am aware that silent feeds are in use by R R beneath it, when employed in combination with the balance-rynd, substantiallyras set forth.

2. The distributing-disk Y, Fig. 3, with its lugs R, without the conic cylinder, when employed in combination with the ballance-rynd aforesaid.

3. The adjustable tube Q, with its vibrating section 0, and set-screw P, in combination with the distributing-disk Y, substantially as specified.

EDWIN CLARK. Witnesses:

CHAS, R. FRAILEY,

JACOB STAUFFER. 

